Apparatus and method for transmitting and receiving broadcasting

Abstract

A broadcasting transmitting apparatus configures one broadcasting channel as at least two video streams, generates a program map table (PMT) representing configuration information of a stream included within the broadcasting channel, sets a program type provided through the corresponding broadcasting channel within the PMT, multiplexes the at least two video streams and signaling information, and transmits the multiplexed two video streams and signaling information through a broadcasting network.

What is claimed is: 
     
       1. A broadcasting transmitting apparatus, comprising:
 a first video encoder encoding a digital television (DTV) video stream to be output as a transport stream (TS) packet; 
 a second video encoder encoding a three-dimensional TV (3DTV) or ultra- high-definition TV (UHDTV) video stream to be output as a TS packet; 
 a signaling information generator generating signaling information including a program association table (PAT), which represents configuration information of a broadcasting channel and a program map table (PMT) which represents configuration information of a stream included in the broadcasting channel to be output as a TS packet; 
 a multiplexer multiplexing the TS packets, which correspond to the DTV video stream, the 3DTV or UHDTV video stream, and the signaling information, to generate a TS corresponding to the broadcasting channel; 
 a transmitter transmitting the TS through a broadcasting network, 
 wherein the PMT includes a program type provided through the broadcasting channel, the program type representing one of a DTV program, a 3DTV program, a UHDTV dedicated program, a DTV compatible 3DTV program, and a DTV compatible UHDTV program; 
 wherein the PMT includes a descriptor loop, the descriptor loop includes a program type descriptor, and the program type descriptor includes a program type field representing the program type; 
 wherein the program type descriptor further includes a program type details information field representing program type details information; and 
 wherein the PMT includes stream type values identifying the DTV video stream and the 3DTV or UHDTV video stream, and the signaling information generator sets the stream type value of the 3DTV or UHDTV video stream as a stream type value which is not recognized by a first broadcasting receiving apparatus reproducing the DTV video stream. 
 
     
     
       2. A broadcasting transmitting method using a broadcasting transmitting apparatus, the method comprising:
 configuring one broadcasting channel as at least two video streams comprising a digital television (DTV) video stream and a three-dimensional TV (3DTV) or ultra-high-definition TV (UHDTV) video stream; 
 generating a program map table (PMT) representing configuration information of a stream included within the broadcasting channel; 
 setting a program type provided through the broadcasting channel within the PMT; 
 generating a TS transport stream (TS) corresponding to the broadcasting channel by multiplexing the at least two video streams and the PMT; transmitting the TS through a broadcasting network, 
 wherein the program type represents one of a DTV program, a 3DTV program, a UHDTV dedicated program, a DTV compatible 3DTV program, and a DTV compatible UHDTV program; 
 wherein the PMT includes a descriptor loop, the descriptor loop includes a program type descriptor, and the program type descriptor includes a program type field representing the program type; 
 wherein the program type descriptor further includes a program type details information field representing program type details information; and 
 wherein the PMT includes stream type values identifying the DTV video stream and the 3DTV or UHDTV video stream, and the signaling information generator sets the stream type value of the 3DTV or UHDTV video stream as a stream type value which is not recognized by a first broadcasting receiving apparatus reproducing the DTV video stream.